Ultrasonic cleaner



FIG. 1 is top plan view of the ultrasonic cleaner showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof, wherein the bottom of right side includes a switch showed as a rectangle and a socket showed as a three-circled part;

FIG. 6 is a bottom plan view thereof, wherein the bottom includes a label recess showed as a rectangle in the middle of the bottom and four grommets showed as four circles at four corners of the bottom;

FIG. 7 is a perspective view projecting toward the front thereof;

FIG. 8 is a blown up view of a part of FIG. 6 thereof; and,

FIG. 9 is a perspective view projecting toward the rear thereof. 

CLAIM The ornamental design for an ultrasonic cleaner, as shown and described. 